K18 AstroLift Reparative Volume Spray restores bounce, strength, and long-lasting volume to fine, fragile, and ageing hair. Powered by the signature K18PEPTIDEā¢, this lightweight, non-sticky spray reverses damage and delivers up to 2.5x more volume for up to 2 days. It works with or without heat styling for touchable, humidity-resistant lift that lasts. This strand-thickening formula boosts fibre diameter by up to 25%, creating fuller-looking hair with a natural, flexible finish.